If the bending of the graphics card does not affect the use, it is not a big problem. I'm afraid the card slot will bend, so upgrading the graphics card will not work in the future.

You can support it with chopsticks, or tie the tail of the graphics card with a network cable or other wires and hang it on the top of the chassis, just straighten it a little.

Or support it with a graphics card bracket, and the chassis should be flat. Obsessive-compulsive disorder, the case is upside down, how to press it back.